Feeding device for circuit board patch processing

Abstract

The utility model relates to the technical field of conveying, in particular to a feeding device for circuit board patch processing, which comprises a shell, a conveying assembly is arranged in the shell and consists of two conveying rollers, four chain wheels and two chains, the two conveying rollers are respectively and rotatably mounted at the lower positions of the front side and the rear side of the shell, and the four chain wheels are respectively and rotatably mounted at the lower positions of the front side and the rear side of the shell. Chain wheels are installed at the two ends of each conveying roller, a chain is wound around the chain wheels, a motor is installed on the right side of the outer portion of the shell, and an output shaft of the motor is connected with one conveying roller. The device is provided with the bidirectional lead screw and the guide rod, the limiting plate is allowed to be flexibly adjusted according to different widths of the circuit boards, the same equipment can adapt to the circuit boards of various sizes and specifications through the design, and the universality of the equipment and the flexibility of a production line are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of conveying technology, and in particular to a feeding device for circuit board patch processing. Background Technology

[0002] In the electronics manufacturing industry, surface mount technology (SMT) of circuit boards is a key process that involves precisely placing various surface mount components in predetermined positions on the circuit board. To achieve an efficient and accurate SMT process, a feeding device is needed to ensure that the circuit board can be stably and accurately transported to the designated working position.

[0003] Patent CN220055156U discloses an electronic circuit board conveying device. This patent features rotating columns movably connected to the movable holes at both ends of a fixed plate, with a conveyor belt mounted on these rotating columns. Furthermore, two drive motors are fixedly installed on the outside of one of the fixed plates, their drive shafts passing through the movable holes and connected to the rotating columns. The device also includes a connecting plate with padded clamping plates fixedly installed on both sides to cushion and protect the circuit boards during feeding, preventing damage from direct hard contact and thus improving circuit board safety and processing quality. However, while this design effectively solves the safety problem of circuit boards during conveying, the fixed installation structure of the clamping plates prevents adjustment of their position according to actual needs, limiting the device to circuit boards of a specific width and significantly restricting its application range and flexibility.

[0004] Therefore, there is an urgent need to provide a feeding device for chip mounting of circuit boards that can be flexibly adjusted according to the width of the circuit board. Utility Model Content

[0005] In order to overcome the shortcomings of existing patents in terms of poor applicability of feeding devices and inability to flexibly adjust according to the width of the circuit board, this utility model provides a feeding device for circuit board surface mount processing that can be flexibly adjusted according to the width of the circuit board.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a feeding device for PCB surface mount processing, comprising a housing, inside which a conveying assembly is installed. The conveying assembly consists of two conveying rollers, four sprockets, and two chains. The two conveying rollers are rotatably mounted on the lower front and rear sides of the housing, respectively. Each conveying roller has sprockets mounted at both ends, and the chains are wound around the sprockets. A motor is mounted on the right side of the housing exterior, and the output shaft of the motor is connected to one of the conveying rollers. Several placement rollers are evenly spaced on the chains of the conveying assembly, and the placement rollers are covered with anti-slip cotton sleeves. A bidirectional lead screw is installed in the upper part of the housing interior. One end of the bidirectional lead screw is rotatably connected to the inner wall of the housing, and the other end extends out of the housing and is fixedly connected to a handwheel. A guide rod is fixedly connected below the bidirectional lead screw, and both ends of the guide rod are slidably equipped with limiting plates located on both sides of the top of the conveying assembly. The limiting plates can slide horizontally along the guide rod and are threadedly connected to the bidirectional lead screw.

[0007] As a preferred technical solution of this utility model, the upper sides of the front and rear parts of the housing are fixedly installed with isolation frames by screws. Each isolation frame is equipped with an ion fan. The top and bottom of the isolation frame are respectively provided with an air inlet and an air outlet, and ventilation mesh is provided inside the air inlet and the air outlet.

[0008] As a preferred embodiment of this utility model, the housing has locking holes on both sides, and a rod is inserted into the locking holes. The rods are used to lock and fix a brush, and a pull rod is fixedly connected to the rods.

[0009] As a preferred embodiment of this utility model, the side of the limiting plate near the conveying component is provided with a soft pad.

[0010] As a preferred embodiment of this utility model, a protective plate is hinged to the isolation frame.

[0011] As a preferred embodiment of this utility model, a silicone pad is provided at the bottom of the housing.

[0012] As a preferred embodiment of this utility model, the handwheel is fitted with an anti-slip sleeve.

[0013] As a preferred technical solution of this utility model, a protective shell is fixedly connected to the right side of the outer shell, and the inside of the protective shell is where the motor is located.

[0014] Compared with the prior art, the present invention has the following technical effects: 1. The device is equipped with a bidirectional lead screw and a guide rod, which allows the limiting plate to be flexibly adjusted according to the different widths of the circuit board. This design enables the same equipment to adapt to circuit boards of various sizes and specifications, greatly improving the versatility of the equipment and the flexibility of the production line.

[0015] 2. By installing ion fans on both sides of the casing, positive and negative ion flows are continuously generated and released, effectively neutralizing the static charge that may accumulate on the surface of the circuit board and in the surrounding environment, preventing component damage or other adverse effects caused by static electricity, and improving the reliability and quality of the product.

[0016] 3. The design of the plug and brush facilitates quick installation and disassembly, allowing operators to regularly clean dust or impurities from the conveying components and placement rollers, keeping the equipment clean, reducing the failure rate caused by contamination, lowering maintenance costs, and shortening downtime. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional sectional view of the housing, motor, and silicone pad of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the conveying assembly, placement roller, and anti-slip cotton sleeve of this utility model.

[0020] Figure 4 This is a three-dimensional sectional view of the components of this utility model, including the bidirectional lead screw, guide rod, and handwheel.

[0021] Figure 5 This is a three-dimensional sectional view of the components of this utility model, including the isolation frame, ion fan, and ventilation mesh.

[0022] Figure 6 This is a three-dimensional sectional view of the brush, insert rod, and pull rod components of this utility model.

[0023] The meanings of the reference numerals in the diagram are as follows: 1-Housing, 2-Motor, 3-Conveying assembly, 4-Placement roller, 5-Anti-slip cotton sleeve, 6-Double-direction screw, 7-Guide rod, 8-Handwheel, 9-Limiting plate, 10-Isolation frame, 11-Ionizing fan, 12-Ventilation net, 13-Brush, 14-Insert rod, 15-Pull rod, 16-Soft pad, 17-Protective plate, 18-Silicone pad, 19-Anti-slip sleeve, 20-Protective shell. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0025] Example 1: Please refer to Figures 1-4 A feeding device for surface mount technology (SMT) of printed circuit boards includes a housing 1. A silicone pad 18 is provided at the bottom of the housing 1. The silicone pad 18 serves as an anti-slip surface, ensuring the stability of the entire device during operation and absorbing vibrations from the ground, reducing noise generated during operation. A conveying assembly 3 is installed inside the housing 1. The conveying assembly 3 consists of two conveying rollers, four sprockets, and two chains. The two conveying rollers are rotatably mounted on the lower front and rear sides of the housing 1, respectively. Each conveying roller has sprockets at both ends, and the chains are wound around the sprockets. The outer surface of the housing 1... A motor 2 is installed on the right side, and the output shaft of the motor 2 is connected to one of the conveying rollers, thereby driving the entire conveying assembly 3. A protective shell 20 is fixed to the outside right side of the housing 1. The motor 2 is located inside the protective shell 20. The protective shell 20 provides physical protection for the motor 2, preventing dust and debris from the external environment from entering the motor 2 and extending its service life. Several placement rollers 4 are evenly spaced on the chain of the conveying assembly 3. The placement rollers 4 are covered with anti-slip cotton sleeves 5 to prevent the circuit board from sliding or shifting on the placement rollers 4. The inside of the housing 1 is... A bidirectional lead screw 6 is installed in the part. One end of the bidirectional lead screw 6 is rotatably connected to the inner wall of the housing 1, and the other end extends out of the housing 1 and is fixedly connected to a handwheel 8 for easy manual adjustment of the bidirectional lead screw 6. The handwheel 8 is fitted with an anti-slip sleeve 19, which increases the operating comfort and grip stability of the handwheel 8, making it easier for the operator to accurately adjust the position of the bidirectional lead screw 6. A guide rod 7 is fixedly connected below the bidirectional lead screw 6, and limiting plates 9 are slidably installed on the left and right sides of the top of the conveying assembly 3 at both ends. The limiting plates 9 can slide horizontally along the guide rod 7. The device is designed to limit and protect circuit boards of different widths. It is threadedly connected to a bidirectional lead screw 6. By rotating the bidirectional lead screw 6, the limiting plate 9 can be driven to move horizontally along the guide rod 7, thereby adjusting the distance between the two limiting plates 9 to accommodate circuit boards of different widths, thus providing protection and ensuring that the correct position and orientation are maintained during transportation. The side of the limiting plate 9 closest to the conveying assembly 3 is provided with a soft pad 16. The soft pad 16 is usually made of a soft and elastic material, which can effectively reduce hard contact between the circuit board and the limiting plate 9 during transportation and improve the protection effect.

[0026] When using this device to transport circuit boards, the circuit board is first placed between the placement rollers 4 on the conveying assembly 3, and then the motor 2 is started. The output shaft of the motor 2 directly drives the connected conveying roller to rotate, which in turn drives the chain to move. As the chain moves, the circuit board on it will also move horizontally forward or backward. The anti-slip cotton sleeve 5 outside the placement roller 4 increases the friction and ensures that the circuit board will not slip or shift during the movement. In addition, the operator can rotate the handwheel 8 to rotate the bidirectional lead screw 6, thereby driving the limit plate 9 to move horizontally along the guide rod 7 and adjusting the distance between the two limit plates 9 to suit the width of the circuit board to be processed. This not only improves the versatility of the equipment and the flexibility of the production line, but also ensures the stability and accuracy of the circuit board throughout the entire conveying process, greatly improving production efficiency and product quality, and meeting diverse production needs.

[0027] Example 2: Based on Example 1, please refer to... Figure 5 The upper sides of both the front and rear parts of the housing 1 are fixed with isolation frames 10 by screws. Each isolation frame 10 is equipped with an ion fan 11 to reduce the impact of static electricity on the circuit board. The top and bottom of the isolation frame 10 are respectively provided with air inlets and air outlets to ensure natural airflow and help to form an effective ion distribution environment. Ventilation mesh 12 is provided inside the air inlet and air outlet to prevent dust and other impurities from entering while ensuring airflow. A protective plate 17 is hinged to the isolation frame 10. During maintenance or cleaning, the ion fan 11 can be easily accessed by opening the protective plate 17.

[0028] When the circuit board is fed in or output through the conveying assembly 3, the ion fans 11 located on the front and rear sides of the housing 1 continuously generate and release positive and negative ion streams. These ion streams cover the conveying path, effectively neutralizing the static charge that may accumulate on the surface of the circuit board and in its surrounding environment, preventing component damage or other adverse effects caused by static accumulation.

[0029] Please see Figure 6 The housing 1 has locking holes on both the left and right sides, and insert rods 14 are inserted into the locking holes. The insert rods 14 are used to lock and fix brushes 13, which are used to clean dust or impurities on the conveying assembly 3 and the placement roller 4 to ensure the stability of equipment operation and the cleanliness of the circuit board. Pull rods 15 are fixed to the insert rods 14 to facilitate the quick insertion and removal of the insert rods 14 by the operator, thereby facilitating the installation and removal of brushes 13.

[0030] When cleaning is required, first, ensure that the brush 13 is positioned between the two locking holes. Then, the operator holds the pull rod 15 and inserts the insertion rod 14 into the locking holes on both sides of the housing 1 to engage with the brush 13, thus fixing the brush 13 in place and ensuring that the brush 13 can contact the conveying assembly 3 and the placement roller 4. After the insertion rod 14 is in place, start the conveying assembly 3. At this time, the brush 13 will automatically clean the dust, debris, or other impurities on its surface and the chain as the placement roller 4 moves, ensuring the stability of the equipment operation and the cleanliness of the circuit board. After the cleaning operation is completed, the operator holds the pull rod 15 and pulls the insertion rod 14 outward to pull it out of the locking hole. During this process, the insertion rod 14 will first separate from the brush 13, and then the insertion rod 14 can be easily removed.

[0031] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A feeding device for circuit board patch processing, comprising a housing (1), a conveying assembly (3) is arranged inside the housing (1), the conveying assembly (3) is composed of two conveying rollers, four chain wheels and two chains, the two conveying rollers are rotatably arranged at lower positions on the front and rear sides of the housing (1) respectively, chain wheels are arranged on the two ends of each conveying roller, and the chains are arranged around the chain wheels, a motor (2) is arranged on the right side of the housing (1), the output shaft of the motor (2) is connected with one of the conveying rollers, and a plurality of placing rollers (4) are uniformly and spacedly arranged on the chains of the conveying assembly (3), an antiskid cotton sleeve (5) is sleeved on the outside of each placing roller (4). The upper portion of the shell (1) is provided with a bidirectional screw rod (6), one end of the bidirectional screw rod (6) is rotatably connected with the inner wall of the shell (1), the other end penetrates out of the shell (1) and is provided with a hand wheel (8), the lower portion of the bidirectional screw rod (6) is fixedly provided with a guide rod (7), both ends of the guide rod (7) are slidably provided with limiting plates (9) located on both sides of the top of the conveying assembly (3), the limiting plates (9) can slide horizontally along the guide rod (7) and are threadedly connected with the bidirectional screw rod (6).

2. The feeding device for processing a circuit board patch according to claim 1, wherein: The upper portion of the front and rear portions of the shell (1) is fixedly provided with an isolation frame (10) through screws, each isolation frame (10) is internally provided with an ion fan (11), the top and bottom of the isolation frame (10) are respectively provided with air inlets and air outlets, and the air inlets and air outlets are internally provided with ventilation nets (12).

3. The feeding device for processing a circuit board patch according to claim 2, wherein: Both sides of the shell (1) are provided with clamping holes, the clamping holes are inserted with insertion rods (14), the insertion rods (14) are jointly clamped and fixed with brushes (13), and the insertion rods (14) are fixedly provided with pull rods (15).

4. The feeding device for processing a circuit board patch according to claim 3, wherein: The limiting plates (9) are provided with soft pads (16) on the side close to the conveying assembly (3).

5. The feeding device for processing a circuit board patch according to claim 4, wherein: The isolation frame (10) is hingedly provided with a protective plate (17).

6. The feeding device for processing a circuit board patch according to claim 5, wherein: The bottom of the shell (1) is provided with a silica gel pad (18).

7. The feeding device for processing a circuit board patch according to claim 6, wherein: The hand wheel (8) is provided with an anti-skid sleeve (19).

8. The feeding device for processing a circuit board patch according to claim 7, wherein: The outer right side of the shell (1) is fixedly provided with a protective shell (20), and the protective shell (20) is located at the position of the motor (2).

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